Nut-lock.



No. 704,053. Patented .Iu |y 8, I902.)

-G. H. LAYNG;

NUT LOCK.

A licaumi ed t.4, 1901.

L 1 mlizesses.

UNITED STATES PATENT ()FFICE GEORGE HENRY LAYN G, OF I-IAVELOCK, CANADA.

NUT-=LOCK.

SPECIFICATION forming part of Letters Patent N 0. 704,053, dated July 8, 1902.

Application filed October 4, 1901. Serial No. 77,560. (No model.)

" ing at the town of Havelock, in the county of Peterborough, in the Province of Ontario, Canada, have invented certain new and usef ul Improvements in Nut-Locks, of which the following is a specification.

My invention relates to improvements in nut-locks; and the object of my invention is to more particularly design a'nut-lock that can be easily and rapidly attached to one of" the fish-plates connecting two rails together and lock the nuts of the bolts of same se-i curelyand that will, should the same be from any causewhatever moved out of place, be easily moved back to place either by hand or else by the first wheels of a train that may be passing over the rails; and it consists, essentially, of a locking-bar provided with a suitablenumber of suitably-placed recesses designed to sufficiently engage the sides of a like number of nuts screwed onto their bolts and so look same, the said looking-bar being pivoted to a suitable base, and other details of construction, as hereinafter more particularly explained.

Figure 1 is a side elevation of my nut-lock attached to a fish-plate joining the adjacent ends of two rails, showing the locking-bar of same in two positions. Fig. 2 is a vertical section througha rail looking at the end of my nut-lock attached to a fish-plate, show-V it into position. 'Fig. 3 shows a view similar to Fig. 2, only with the locking-bar knocked into position and locking-the nuts after the car-wheel has passed over the'rail. Fig. 4. is a perspective view of the locking-bar itself.

In the drawings like letters of reference indicate corresponding parts ineach figure.

A represents the rails, and B B the fishplates. 0 represents the bolts passing through said railsand fish-plates, and D nuts of same. E is a plate, preferably made in one piece, and through which the bolts G pass. The nuts D are jammed against the plate E. Suitably pivoted to the plate E, as by stiff links F, is a locking-bar G, provided with recesses H, opening from its lower edge. The lower corners d of'the recesses H are rounded, as shown, so that when the locking-bar G is moved so as to lock the nuts D the sides of same may be moved asclosely as possible to the engaged sides of the nuts and prevent any-loosening of same. If I Wish, I may provide each side of the recesses H with flanges h, and thus bring a larger additional area of the locking-bar G into contact with the nuts D, as shown, than if I constructed said recesses without said flanges. If for any reason the locking-bar G be moved out of contact with the nuts D -into the position shown in Figs. 1 and 2, for example-the first pair of Wheels of a'train will strike said locking-bar and immediately knock same back into position. In order to enable the locking-bar G to operate, no matter in which direction the train may be moving, I provide another set of recesses H, placed, as shown, so that if, for example, the locking-bar be moved from its dotted position in the direction indicated by arrow the sides of its recesses 11 will engage with and lock the nuts D without any trouble. I may also provide the recesses H with flanges h. The pivoting of the locking-bar is such as-will permit ready movement of same, but will not allow the parts to rattle, and under ordinary conditions if the said locking-bar were to be movedout of contact with the nuts H it would be brought back into position by gravity. The-changes in weather may cause the locking-bars pivoted movement to be more or less free; but if the said locking-bar were to be moved and stay in such position .that the wheels of a train will strike same, it would be immediately forced back to normal on account of the sudthis. I

I is a lip secured to or forming part of the locking-bar- G, preferably midway of the length of same, as shown, to enable the said locking-bar to be moved for any desired purpose.

It will of course be understood that I may,

if desired, make the locking-bar G up of a number of independent sections pivoted independently to a fish-plate or else provided with its plate E; but I preferably manufacture the nut-10ck as shown in the drawings.

My nut-lock is preferably secured on the outside of the rail.

My nut-lock can of course be adapted to other purposes than those described in this specification, such as are Within the sphere of an ordinarily skilled mechanic, and Iclairn such to fall within the scope of my invention.

What I claim as my invention, and desire to secure by Letters Patent, is-- A nut-lock comprising abase-plate through which the bolts of the nuts to be locked, pass,

and against which the nuts are jammed, a'

locking-bar provided with a suitable number of recesses, the sides of said recesses being 

